Grease-cup



S. DAWSON.

GREASE CUP.

APPLICATION FILED SEPT. 19'. 1918.

1,345,43%. Patented July 6, 1920.

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um'rso s'rga'ras PATENT @FFIQE.

SIDNEY DAWSON, CI- IICAGO, ILLINOIS, ASSIGNOR, BY DIBECT AND MESNEASSIGN- MENTS, TO DAWSON- MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, ACOR- PORATION OF ILLINOIS.

GREASE-CUP.

Patented July 6, 1920.

Application filed September 19, 1918. Serial No. 254,736. i

To all whom it may concern: I

Be it known that I, SrD EY'DAwsoN,a citizen of the United States, and aresident of the city of Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements in Grease-Cups; and I do hereby declare that the following is a full, clear, andexact description of the same, reference being had to the accompanyingdrawings, and to the numerals of reference marked thereon, which form apart of this specification. r r

This invention pertains to an improved form of grease cup havinginterfitting interlocking members disposed in the cup cap so that one ofsaid members may be engaged by a squared alining stem securedin theoutlet base of the grease cup, to prevent the cap from beingaccidentally worked off of the base, due to jarring or vibratory actionsof the mechanism upon which the grease cup is mounted, said interlockingmembers affording an arrangement whereby the cap is held in apredetermined adjusted position from which it can only be moved withre.- spect to said base to force oil therefrom, by manually turning thecap and thereby the other of said interfitting interlocking members toovercome the frictional engagement with respect to the member which isheld against rotation by the squared base stem.

It is an object ofthis invention toprovide a grease cup adapted tobeoperated manually only, to cause grease to be, ejected therefrom. I

' Another obj ect of the invention is the construction of a grease cupwhereinmovably interfitting grease containers are provided with manuallyreleasable interlocking members for preventing one of said containersfrom accidentally working its way off of the other of said containers.

It is also an object of the invention to provide a force-feed greasecup, wherein interfitting members are adapted. to be manually rotatedwith respect toone another to cause grease to be :forced from said cupby the telescoping of grease containers forming said cu, 1 I

It is furthermore an object of this invention to construct a grease cupcomprising interfitting grease containers, one of which is provided'withinterfitting members adapted to be engaged by a member secured in the.

other container to prevent a telescoping .ac-

tion between said containers except by a.

manual rotation of the first mentioned contamer whereby the frictionalengagement between the interfitting members is overcome to permit thecontainers to telescope to cause grease to be ejected from the cup.

It is an important object. of the invention to provlde a grease cupofsimple and effective form wherein the frictional engagement between;interfitting members within the cup is adapted to be manually overcometo permit grease to be forced from said cup.

Qther and further important, objects of this lnvention will be apparentfrom the disclosures in the specification and drawings.

inv ntion: (in .a,.r r d, form) is illustrated in the drawings andhereinafter more fully described.

On the drawings:

Flgure l is a central vertical section taken through a grease cupembodying the principles of this invention, showing parts in elevatlon.V V

Fig. 2 is a bottom plan View of the grease cup cap.

Fig. 3 is a top plan view of the grease cup base. I Fig. 4 is a sideelevation of the interlocking interfitting members of the grease cup capremoved therefrom.

Fig. 5 is a sectional view taken on line 55, of Fig. 4;.

Fig. 6 is a section taken on line 66, of Fig. 5.

As shown on the drawings;

The reference numeral 1, indicates an externally threaded metalcontainer or cup,

having integrally formed on the bottom thereof a hollow nut portion2,'of reduced diameter, on the lower end of whichis integrally. formedan I externally threaded mounting tip or shank 3, of a diameter lessthan that of the. nut 2, and provided with an outlet opening or aperture4, in the lower end thereof. The shank 3, is provided with V a chamberor central passage 5, which communicates with a chamber 6, 1n thenutportion 2-. The cup chamber designated by the reference numeral7,together with the chamher 6, and passage 5, afford a continuousfunnel-shaped passage through the integrally connected membersformingthebase of the device. f f

Disposed axially within the base of the grease cup isna key comprising asquared or angular rod or stem 8, having spider, embracing a pluralityof radially directed ribs, lugs or vanes 9, adapted to be frictionallyforced against the inner walls of the nut 2, to rigidly hold the stem 8,axially disposed i *ithin the grease cup base and pro j ectingthereabove, as shown in Fig. 1. The ribs 9, afford a plurality ofopenings 10, between the inner walls of the nut 2, and said ribs, topermit grease from the cup chamher 7, to pass downwardly into thechamber 6, between the respective ribs 9, and out through the shankpassage 5, ing 4, to the parts to be lubricated.

An interiorly threaded grease container or cap 11, is provided with aclosed chambered head or hood 12, integrally formed on the upper endthereof. The cap 11, is rcinovably threaded upon the threaded basecontainer 1, to telescope thereover, vith the squared stem 8, projectingcentrally through said cap. Rigidly sprung or threaded into the cap 11,or held securely seated therein by friction or other suitable meansagainst the inner surface of the top 13, of the cap 1 is a star ortoothed washer or retainer plate 14, having integrally formed centrallytherein a downwardly projecting cylindrical locking sleeve or collarcomprising plurality of adj acently disposed flexible strips or springs15.

Interfitting with or engaged in the enter locking member which embracesthe plate 14 and the springs 15, is an. inner locking member comprisinga cylindrical locking drum, barrel or friction cup 17, closea one end,which is provided with a square or angular opening 18, through which thekey stem 8, projects, when the grease cup is assembled for use as shownin Fig. 1, to hold said inner locking member against rotation. Formedintegrally or rigidly secured on the outer peripheral surface of thelocking drum 17, are a plurality of spaced projections or detents 19,which act to hold certain of the springs 15, of the cap locking membersprung outwardly, as shown in Fig. 6. With the grease cup assembled'asshown in Fig. 1, the frictional locking members act to normally hold thecap 11, from acciden tally rotating upwardly on the base, due to jarringor vibratory actionsof the mechanism upon which the grease cup may bemounted.

The operation is as follows:

Vi hen it is desired to use the grease cup, as described, on an engineor other mechanismrequiring lubricating, the base portion is firstmounted by threading the shank 3, into a suitable aperture provided inthe mechanism for the purpose, by means of a wrench engaging the nutportion 2, to tightly secure the base in a vertical position. The cupchamber 7, and the cap chamber integrally.

and the opento rotate therewith around the inner locking member, as thecap is manually threaded downwardly on the base, thereby causing thesprings 15, of the outer locking member to be sprung outwardly as theyare brought into frictional engagement with the detents 19, as themanual rotation of the cap and its locking member is'continued.

The manual rotatire force exerted on the cap 11, is sufficient toovercome the frictional resistance oiieret by the locking members, sothat the downward movement of the cap on the base, causes pressure to beexerted upon the grease within the grease cup, thereby forcing smallquantities of me grease through the openings 10, througl'i the chamber5, and out through the outlet tnre l to the parts requiring lulinricatin, as

'the grease cup cap telescoped over we from which it can be rotatablymoved either downwardly or upwardly by manually turn ing the cap '11, inthe desired direction w 11 sufficient force to overcome the frictionallocking engagement betweenthe two loci;- ing'members. The stem 8, alsoa. a means forholding the cap alined with re spect to the base.

I am aware that numerous details of con struction may be. varied througha wide range without departing from the principles of this invention,and Itherefore do not purpose limiting the patent granted otherwise thannecessitated by the prior art.

I claim as my invention:

1. A grease-cup comprising a chambered base having an outlet therein, asquared key axially secured therein and projecting thereabove, achambered cap rotatably engaged on said base'inclosingsaid key andadapted to be manually operated to move downwardly over said base toforce grease contained within said chambers from said outlet as:required, a locking member secured in said cap to be rotated therewith,and a second locking member frictionally engaged therewith adapted to beheld stationary by said key to hold said cap stationary in an adjustedposition against accidental movement by jarring or other disturbingactions.

2. A grease cup comprising interfitting grease containers, a squarealining stem secured in one container, a spring locking member rigidlysecured in the other container, and another locking member held againstrotation by said stem adapted to lockingly engage said spring lockingmember.

3. A grease cup comprising a base member, a cap member, an angular stemsecured to the base member, a locking member in the cap, springsintegral therewith, a second locking member within said cap held againstrotation by said stem, and means thereon for frictionally engaging saidsprings to normally hold said cap in a predetermined adjusted positionagainst accidental rotation.

4. In a grease cup a base member, a cap member, a squared stem mechanismrigidly secured in said base member adapted to admit grease therepastthrough the base member, a locking member in the cap member throughwhich the stem mechanism extends to hold the same against rotation,detentsjformed on said locking member, and

a spring locking member rigidly secured in said cap member andsurrounding said first mentioned locking member adapted to befrictionally engaged by said detents to normally hold said cap member inan adjusted position on said base member against accidental movement byjarring or other causes.

5. A grease cup comprising a base having an outlet opening therein, akey member secured therein adapted to permit passage of grease throughsaid base, a cap adapted to be threaded onto the base, an aperturedlocking member within the cap to receive the key member therethrough tohold the locking member stationary, and a resilient locking membersecured in said cap and friction'ally engaging said apertured lockingmember to hold said cap against movement 011 said base, said cap adaptedto be Luanually'rotated on said base to force grease through said outletopening and cause said resilient locking member to frictionally rotateon said apertured locking member.

6. A grease cup comprising telescoping base and cap containers,frictlonally interiitting locking members within said cap, and a memberrigidly secured in said base container and engaging one of said lockingmembers to hold the same stationary to per mit the other locking memberto be rotated thereon when said cap container is manually rotated.

7. A grease cup comprising an apertured base, a stem secured thereto, acap movably mounted on said base, a plate rigidly secured therein,resilient strips integral therewith, an apertured locking memberdisposed between said strips and held stationary by said stem, anddetents on said stationary locking member adapted to spring said stripsoutwardly to lockingly hold said cap in an adjusted position on saidbase against accidental movement.

8. A. grease cup embracing interfitting outer and inner locking members,a base member, means secured thereto for removably engaging said innerlocking member to hold the same locked against rotation, and a greasecontainer mechanism engaging the outer locking member and said basemember, said container mechanism adapted to be manually rotated torotate said outer locking member on said inner locking member as thecontainer mechanism is telescoped over the base member.

In testimony whereof I have hereunto subscribed my name in the presenceof two subscribing witnesses.

' SIDNEY DAWSON. Witnesses:

CHARLES W. HILLs, J r., EARL M. HARDINE.

